Whether the mean-field two-length scale theory of hydrophobic effect can be microscopically approved?

2005/10/03 by G. Sitnikov, Sitnikov, G., Sergei Nechaev +1
Earth and Planetary Sciences · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Statistical Mechanics (cond-mat.stat-mech) #Underwater Acoustics Research

paper · pdf · doi:10.48550/arxiv.cond-mat/0510045

openalex publication_date 2005/10/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss the simple microscopic derivation of a hydrophobic effect. Our approach is based on the standard functional representation of the partition function of interacting classical particles and subsequent passage to collective variables (local densities of the solvent). We get an expression for the solvation free energy of solute molecule of any arbitrary shape and derive the nonlinear equation for the mean solvent density surrounding the solvated object. We pay a special attention to some inconsistencies between the microscopic consideration and the two-length scale mean-field theory of hydrophobic effect.

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